PATERSON — About 50 Paterson firefighters battled a two-alarm blaze at a pharmaceutical company on Prince Street Wednesday before the fire was put out by 1:30 p.m., authorities said.

The Passaic County hazardous materials team also was on the scene because of chemicals in the building.

The fire at Pharmachem Laboratories, Inc., a one-story commercial building, began at about 11:30 a.m. Workers were evacuated, but Paterson Fire Chief Michel Postorino said no injuries were reported. Company employees watched from the street in white uniforms.

The fire, which began in the roof area and spread into a few rooms in the building, is under investigation.